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Preparation technology for electric-transmission-line insulation outer layer and application thereof

A technology of insulating outer layer and preparation process, which is applied in the direction of rubber insulators, organic insulators, plastic/resin/wax insulators, etc., and can solve problems such as hindering safe evacuation and fire fighting work, loss of life and property, etc.

Inactive Publication Date: 2016-04-20
STATE GRID SHANDONG ELECTRIC POWER +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] No matter from the perspective of mechanical properties, thermal fire chemical resistance and disaster protection, the outer insulation material of the cable plays a vital role in protecting the internal material from damage and maintaining its normal operation. In the specific application process, the cable The outer insulating material must be able to resist sunlight, UV radiation, ozone aging, and chemical erosion, and at the same time, it can still guarantee or temporarily guarantee its normal operation in the case of accidental disasters. With the frequent occurrence of electrical fire accidents, the resistance of wires and cables The burning problem has gradually attracted the attention of all countries in the world; when the cable burns, it releases a large amount of smoke and toxic and corrosive gases, which are dangerous factors in fires, which hinder people's safe evacuation and fire fighting work, and cause serious losses of life and property. At the same time, with the development of the communication industry, the automobile industry and the computer industry, especially in many occasions such as aviation wires, automobile wires, high-temperature instrument cables, and oil drilling platform cables, it is increasingly necessary to use flame-retardant, thermally stable, and heat-resistant materials. Cable outer layer insulation material with high deformation temperature

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] A preparation process for an insulating outer layer of a transmission line, comprising the steps of:

[0019] Step 1) Weighing raw materials: Weighing each raw material according to parts by weight for later use; 1 part of magnesium oxide, 1 part of antimony trioxide, 1 part of oleic acid amide, 1 part of borax, 2 parts of triphenyl phosphate, 2 parts of zinc borate, 2 parts of glass fiber, 3 parts of palygorskite, 4 parts of stearic acid, 5 parts of egg shell, 5 parts of kaolin, 8 parts of aluminum nitride, 8 parts of triallyl cyanurate, 12 parts of chlorinated polyethylene, EPDM rubber 16 parts, hydrogenated nitrile rubber 16 parts.

[0020] Among them, the particle size of magnesium oxide, antimony trioxide, zinc borate, kaolin and aluminum nitride is controlled at 100 mesh; the diameter of glass fiber is 20um, and the length is 50um.

[0021] Step 2) Preparation of material 1: adding borax, palygorskite and egg shells to the crusher in sequence for crushing, and th...

Embodiment 2

[0026] A preparation process for an insulating outer layer of a transmission line, comprising the steps of:

[0027] Step 1) Weighing raw materials: Weigh the following raw materials in parts by weight for later use: 2 parts of magnesium oxide, 2 parts of antimony trioxide, 2 parts of oleic acid amide, 2 parts of borax, 3 parts of triphenyl phosphate, and 3 parts of zinc borate , 3 parts of glass fiber, 4 parts of palygorskite, 6 parts of stearic acid, 7 parts of egg shell, 7 parts of kaolin, 10 parts of aluminum nitride, 10 parts of triallyl cyanurate, 15 parts of chlorinated polyethylene , 20 parts of EPDM rubber, 20 parts of hydrogenated nitrile rubber. Among them, the particle size of magnesium oxide, antimony trioxide, zinc borate, kaolin and aluminum nitride is controlled at 100 mesh; the diameter of glass fiber is 10um, and the length is 30um;

[0028] Step 2) Preparation of material 1: adding borax, palygorskite and egg shells to the crusher in sequence for crushing, ...

Embodiment 3

[0033] The performance test of the insulating outer layer prepared by the present invention:

[0034] 1. The mechanical properties, corrosion resistance and insulation properties of the insulating outer layer prepared in Example and Example 2 are better, and the specific test results can be seen in Table 1, wherein the thickness of the insulating layer is 2mm:

[0035] Table 1

[0036] group Exterior Tensile strength (N / mm 2 ) Elongation at break (%) Thermal stability time at 200°C (min) Volume resistivity×10 -15 (Ω·cm) Oxygen Index Example 1 Good plasticization, uniform color and no impurities 18.3 491 >180 2.59 33.2 Example 2 Good plasticization, uniform color and no impurities 18.4 482 >180 2.53 33.7

[0037] 2. Anti-corrosion performance test: soak the test material in 10% sodium chloride solution for 100 days, and measure the main performance parameters, see Table 2: The test material is soaked in 10% sulfuric acid soluti...

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Abstract

The invention belongs to the field of manufacture of electric power materials, and discloses a preparation technology for an electric-transmission-line insulation outer layer. The preparation technology comprises the following steps: step 1) weighing raw materials; step 2) preparing a material 1; step 3), preparing a material 2; step 4) preparing a material 3; and step 5), preparing the insulation outer layer. The technology is simple and feasible, and the prepared insulation outer layer is relatively excellent in various performances.

Description

technical field [0001] The invention belongs to the field of electric power material manufacturing, and in particular relates to a preparation process and application of an insulating outer layer of a power transmission line. Background technique [0002] Power transmission is achieved by using a transformer to boost the power generated by the generator, and then connecting it to the transmission line through circuit breakers and other control equipment. According to the structural form, transmission lines are divided into overhead transmission lines and cable lines. The overhead transmission line is composed of line towers, wires, insulators, line fittings, guy wires, tower foundations, grounding devices, etc., and is erected above the ground. The most important component of a transmission line is the power cable. In recent years, with the increasing development and popularization of the use of wires and cables in production and life, the demand for wires and cables has...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L15/00C08L23/16C08L23/28C08K13/04C08K7/14C08K5/20C08K5/3492C08K3/26C08K3/28C08K3/22C08K3/38C08K3/34H01B3/28H01B3/44
Inventor 曹政闫红军秦承胜王明强杨法伟王倩倩
Owner STATE GRID SHANDONG ELECTRIC POWER
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